Questions tagged [3dtexture]
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23 questions
0 votes
0 answers
40 views
Sparse volume rendering on hardware?
I need to do real-time volume rendering of sparse data (medical and mining), when previously I've only done it using dense data (with straightforward ray marching through a 3D texture in the shader). ...
-1 votes
1 answer
215 views
How do I view my vertex colors that I specified through the texture I've applied on my objec [OpenGL]?
I thought that if I used an image with a transparent background, I would still be able to see the colors I had specified in my vertex attribute buffer. ...
0 votes
0 answers
110 views
UV coordinates calculation broken
I've tried using the classic formula of calculating barycentric coordinates. When the plane on which you are projecting the texture is collinear to any of the base vectors it crashes with a division ...
0 votes
0 answers
59 views
Changing shader color
I have the following .fx file for my shader: ...
1 vote
1 answer
419 views
How 3D painting software works
I am new to graphics programming and i'm learning opengl. I managed to make a really simple renderer where i can import models display theirs textures with all lighting. My goal is to make a simple ...
0 votes
0 answers
672 views
Inverse texture mapping
I have a textured 3D object and looking for ways to transform back the texture. Effectively, I think this is an inverse texture mapping task. Do you know of anything close to this? Some papers or ...
2 votes
0 answers
185 views
Handling varying texture sizes in an array texture
Say we've idetified that we have a varying number of textures that are upper capped by 2 parametrs. thus we allocate the maximum amount of memory needed to store all textures as follows: ...
2 votes
1 answer
4k views
How do you load multiple textures into an array texture with OpenGL?
I have been reading the OpenGL documentation but it is not clear to me how to achieve the following. Say we have an array of strings. Each string in the array is a valid relative path to an image ...